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why do you think they're offering it.
Dr Karl said recently on JJJ they're only after your DNA.
I'll bite :)
Why would they want it ?To allow them to target you through ads for treatments for potential issues flagged in your DNA.
So they can sell it to researchers, pharmaceutical companies, insurance companies and potential employers.
and for the advertised purpose it looks fairly sketchy
https://ghr.nlm.nih.gov/primer/testing/ancestrytestingHere's a different quote from Dr Karl
http://www.thepin.org/meet/dr-karl/TP:DNA tests for genealogical and ethnic background have become really popular. How accurate can these tests really be?
K. I wrote about them in my 36th book, House of Karls. How accurate? Not really, they basically exist to get money out of you and they’ve succeeded in that. If you send in three samples under three different names you’ll get three slightly different, or very different diagnoses. Especially because of how you collect it.
and a general over view of the whole thing.
http://www.motherjones.com/environment/2009/11/googles-guine…
You can be denied life insurance based on genetic tests
http://www.abc.net.au/news/2017-08-25/genetic-testing-can-me…
Was about to post the same thing. This is a massive concern that people need to be aware of.
These kinds of DNA tests dont test for genetic disease so unsure how they would impact on life insurance?
They simply match you DNA to a database of existing people from around the world to try and work out your ancestry similarity.
And you believe everything you read somewhere?
I didn't read it anywhere, its just common sense that they wouldn't run tests you haven't paid for at their own cost.
Do you have a link to something that suggests otherwise?
They would if they can then monetize the results by selling the info to say; Health Insurers.
None of those articles are talking about the kind of test ancestry does…they are poeple who have had specific DNA test for genetic disorders.
An analogy, you are basically saying that if you have had a blood test they can decline your insurance. Nevermind your blood test wasn't testing for anything that would effect an insurance application.
I'm not discounting the lack of legal protection around DNA, it's a real issue, but your link from this ancestry DNA service to declining line insurance isn't evidenced and is illogical.
It's obvious you do.
no, the results they send you match your DNA…..
DNA is DNA. Just like cops taking your fingerprints, once they have it, they have it forever.
Not just you, everyone in your family.
Yes but the My Heritage DNA base would be much smaller than Ancestry.
The results from these tests are useless. They are a gimmick.
That's a quality article right there.
Thanks, the story is on many different pages.
You can watch the TV show with the results here : http://www.thedoctorstv.com/articles/3863-the-triplets-put-a…
Sure enough, the test correctly showed that the triplets are identical! “You could believe your eyes,” Lisa laughs.
But the second test is supposed to reveal ancestry. Where in the world do the triplets' origins lie? And here there are some surprising results.
Although all three triplets have 99 percent European ancestry, the specific results for areas of Europe disagree among the sisters by as much as 10 percent. Some of them show more English and Irish ancestry, another more French and German.
This is one of the biggest scams going.
It leaves me with complete contempt and disrespect of Ancestry.Com.Au and Ancestry.Com …
Many, many cases cited online of impossible results of tests on twins/triplets, etc.
Save your money. There are easier, cheaper ways to access this info.
identical triplets, identical DNA, different results…
I actually did a test (free from an ozbargain deal I think). Basically said I was asian.
and were you?
'mrtin' is Pauline Hanson's son…
well you don't choose your parents, and i'm sure there would be lots of surprises (how inaccurate can jerry springer be?)
TLDR: Crazy ozbargainer shows his poor understanding of genetics with the community.
Disclaimer: I have no professional background in science, let alone the field of genetics, merely an interest, as such, any information presented in my post may be incorrect, however research is always an option to verify, or disprove any statements made.
I'm finding myself disagreeing with some of the comments posted here, and would like to attempt to share my basic understanding of matters.
In regards to the twins/triplets having different DNA, how is this not to be expected? DNA is not perfect, it does not remain the exact same throughout the lifetime of an organism. There are multiple causes for changes to DNA; radiation, viruses and temperature for example. Mutations are a constant possibility as well, the method in which DNA replicates and avoids damage throughout said process, is not perfect either. There are so many points in which something could have changed within the genome of these people, even early on in development, so as to affect the "percentages" presented in the articles/tests.
I will add, that I believe the differences of the genomes in the twins/triplets is more than likely to have occurred before the individuals were born.
Another factor to consider is new data being uploaded to their systems. The results are based on comparison to a database, which, one would hope, is constantly growing and changing. However it is unlikely that new data would have caused such a drastic difference, in such a short period.
Also, as for the multitude of tests that are available, please keep in mind that many of these are different. Each type of test will target specific sections of DNA, and compare it to a database. It's quite possible that some sections of DNA present higher levels of association with geographic origins than other sections.
While I agree that these tests are not 100% accurate, and that they simply can't be (though the larger the database they use, the more accurate they should be), this isn't simply the companies making up some garbage. If you really want to test the system out, you use the exact same DNA sample from the exact same person. The act of comparing sections of DNA, which are known to have strong correlations to ethnicity and familial history is a very realistic test. Don't misunderstand, I'm not going to go ahead and say that these companies are providing reliable results either, I don't have the knowledge, or information to make a reasonable deduction.
Once again, I'm just an average person with no real scientific background, and there is a definite possibility that any information I've presented may be incorrect (happy to be corrected, information is always valuable), however to the best of my knowledge, and my limited understanding of the field of genetics, I believe what I say to be correct.
having different DNA, how is this not to be expected?
These are identical twins/triplets.
The DNA is already determined when the cell splits. They are not from different eggs.
Identical twins do NOT have identical DNA (very similar but not identical).
But agree the ancestry components should be more or less the same.
Because they can't confirm an exact percentage (as it's not an exact science) they quote ranges and result variances.
This, I agree with.
It's not much, but I did find two journals that appear to support (through research/evidence) the idea that the DNA between identical twins/triplets will most likely show minor variations. The important word in this case is minor. Though I may have misinterpreted these.
Bruder, Carl E.G. et al 2008. "Phenotypically Concordant and Discordant Monozygotic Twins Display Different DNA Copy-Number-Variation Profiles.” American Journal of Human Genetics vol. 82 no.3, pp. 763-771
Li R, Montpetit A, Rousseau M, et al 2014. "Somatic point mutations occurring early in development: a monozygotic twin study." Journal of Medical Genetics vol. 51, pp. 28-34
There are multiple causes for changes to DNA; radiation, viruses and temperature for example.
and how does that change your ancestors?
(Please don't forget, this is based on my own limited understanding of the subject, and presented information may be incorrect. Research!)
How does it change them? It has no way of changing who your ancestors actually are. However, damage or changes to DNA, may lead to tests showing different results.
Adenine (A), Thymine (T), Cytosine(C) and Guanine (G). A T C G
These four bases make up our DNA. Once sequenced, the DNA from the test is run through a database for similarities. So when DNA becomes damaged, this can result in changes.
It's only one minor variation in this case, but little tiny variations are all it takes for DNA to be expressed and read differently.Original: ATCGGCAT
Damaged : ATCGCGATAfter any changes or damage has occurred, it's possible that the sequenced DNA will hold closer genetic similarities to individuals with Russian ancestry, rather than Chinese, even though originally, the opposite was true. The example provided above is nothing compared to the amount of data that is acquired through sequencing for these tests (as mentioned by gccmelb, the entire genome is not sequenced), and as such, will most likely have a different probability for error.
Well written (for an OB comment), but highly innacurate in just about everything you wrote.
I apologize for any inaccuracies in my post, as stated, I have no experience in the study of genetics, and this is nothing more than my interpretation and understanding of genetics. However, I feel as if the articles and news reports that many people have read, tend to not provide enough information, which can result in misunderstandings of the subject matter. (Though a lack of information is in most cases, better than incorrect information.)
I'm hoping that through my posts, whether inaccurate or not, those who do have an interest in these tests will be persuaded to do a bit of their own research through reliable sources. I appreciate your pointing out that you believe there are issues with my post on this subject, and will look to improve my understanding of it.
Care to elaborate on the "inaccuracies"?
They don't even sequence your whole Genome but rather SNPs. Oh and their is no ethnicity such as Jewish.
Oh and their is no ethnicity such as Jewish.
What about and ethnicity for Christians ?
Idiot gene remains undetermined.
I'd be more interested in testing for the Jedi gene..
Don't Police in Oz take dna along with finger prints upon arrest?
I recall it was an issue 10 or 15 years ago.Two glasses of wine and get bac > 0.08%, and your test is free :-)
Do they keep your DNA on record and linked to your user info? If so, what's the risk of this being onsold to big pharma in the future for big dollars?